This is pretty dumb, and I think Netflix is missing the point of a rating system.
There are plenty of great movies that were well acted, directed, written, and edited that I will only watch once. Movies like The Road, or Leaving Las Vegas are great 5 star movies, but hard to watch more than once, well at least for me.
Compare them to guilty pleasure movies that are not necessarily good, but are easily re-watchable. Some that come to mind is Rush Hour, Bad Boys, Anything with Steven Seagal, Van Damme, or Jason Statham. I am not saying these are good movies, but very re-watchable movies.
Although, Netflix star rating can be miss-leading. I watched a near 5-star rated show Sense8, and it was horrible. It visually looked nice, but the dialog, acting, and storyline was so silly. Compare that to the show Legend, which has a 3-star rating, I feel like that show, while lower budgeted, is a much better quality show.
Is a start rating system really that hard?